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28 October 1992 Improved error diffusion method
Te-Mei Wang, King-Lung Huang, Po-Chih Wang
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Proceedings Volume 1816, Electro-Optic Computer Peripherals Technology; (1992) https://doi.org/10.1117/12.131337
Event: International Symposium on Optoelectronics in Computers, Communications, and Control, 1992, Hsinchu, Taiwan
Abstract
Using the error diffusion method to print documents through a medium resolution (typically between 300 dpi and 600 dpi) printer has three drawbacks: (1) the snake-like noise disturbs the white background; (2) the printed image is too dark to distinguish the details; (3) the printed text exhibits a coarse edge. In this paper, the authors propose some methods to overcome these shortcomings. In order to eliminate the first shortcoming, a white minimum threshold value is set to calibrate the diffused errors. For the second shortcoming, a tone-scale adjustment function is used to lighten the images. Finally, an edge enhancement algorithm is introduced to overcome the third shortcoming.
© (1992) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
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Te-Mei Wang, Te-Mei Wang, King-Lung Huang, King-Lung Huang, Po-Chih Wang, Po-Chih Wang, "Improved error diffusion method", Proc. SPIE 1816, Electro-Optic Computer Peripherals Technology, (28 October 1992); doi: 10.1117/12.131337; https://doi.org/10.1117/12.131337
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